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added a wait when init I2C, seems to increase stability

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This commit is contained in:
iceman1001 2022-12-09 07:40:41 +01:00
commit 8eb6f60ba6
3 changed files with 9 additions and 5 deletions
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2
armsrc/appmain.c
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@ -2608,7 +2608,7 @@ void __attribute__((noreturn)) AppMain(void) {
#endif
#ifdef WITH_SMARTCARD
I2C_init();
I2C_init(false);
#endif
#ifdef WITH_FPC_USART

10
armsrc/i2c.c
View file

@ -91,7 +91,7 @@ void I2C_recovery(void) {
DbpString("I2C bus recovery complete");
}
void I2C_init(void) {
void I2C_init(bool has_ticks) {
// Configure reset pin, close up pull up, push-pull output, default high
AT91C_BASE_PIOA->PIO_PPUDR = GPIO_RST;
AT91C_BASE_PIOA->PIO_MDDR = GPIO_RST;
@ -106,6 +106,10 @@ void I2C_init(void) {
AT91C_BASE_PIOA->PIO_OER |= (GPIO_SCL | GPIO_SDA | GPIO_RST);
AT91C_BASE_PIOA->PIO_PER |= (GPIO_SCL | GPIO_SDA | GPIO_RST);
if (has_ticks) {
WaitMS(2);
}
bool isok = (SCL_read && SDA_read);
if (isok == false)
I2C_recovery();
@ -133,7 +137,7 @@ void I2C_SetResetStatus(uint8_t LineRST, uint8_t LineSCK, uint8_t LineSDA) {
// Note: the SIM_Adapter will not enter the main program after power up. Please run this function before use SIM_Adapter.
void I2C_Reset_EnterMainProgram(void) {
StartTicks();
I2C_init();
I2C_init(true);
I2C_SetResetStatus(0, 0, 0);
WaitMS(30);
I2C_SetResetStatus(1, 0, 0);
@ -146,7 +150,7 @@ void I2C_Reset_EnterMainProgram(void) {
// Reserve for firmware update.
void I2C_Reset_EnterBootloader(void) {
StartTicks();
I2C_init();
I2C_init(true);
I2C_SetResetStatus(0, 1, 1);
WaitMS(100);
I2C_SetResetStatus(1, 1, 1);

2
armsrc/i2c.h
View file

@ -31,7 +31,7 @@
#define I2C_DEVICE_CMD_SEND_T0 0x07
void I2C_recovery(void);
void I2C_init(void);
void I2C_init(bool has_ticks);
void I2C_Reset(void);
void I2C_SetResetStatus(uint8_t LineRST, uint8_t LineSCK, uint8_t LineSDA);